For the gift, start research and development of graphene batteries

Chapter 16 Rare leisure time
Afterwards, Jiang Ming took out a pen and wrote the graphene information he had summarized in his notebook.

Various material manufacturers and various types of materials kept appearing on the paper. In the end, Jiang Ming selected several major materials.

According to Jiang Ming's speculation, these major materials are more suitable for the improved graphene negative electrode material.

In the middle, various factors should be considered, and the higher the energy density, the better.

In fact, in order to match the graphene negative electrode, Jiang Ming voluntarily discarded several high-density positive electrode materials and chose a smoother one.

Song Zhiyi looked at the various materials on Jiang Ming's notebook with a complicated look on his face.

At this moment, Song Zhiyi was shocked again.

Song Zhiyi has been completely sure that Jiang Ming is a hidden master, a senior who hides in the field.

Among so many materials, these selected materials should be said to be the best performers.

No, there seems to be a problem.

Song Zhiyi looked at the electrolyte in it, and was a little puzzled. There are several types of electrolyte, why did Jiang Ming choose this one?

"Here, look, what's the problem?"

Jiang Ming handed the materials he chose to Song Zhiyi.

After all, Song Zhiyi is an old man. Although Jiang Ming feels that his ratio should be the best, he still needs to ask his teammates for their opinions.

"This, this electrolyte, is there something wrong?"

Song Zhiyi had already seen the ratio of materials written by Jiang Ming.

So after taking it, without hesitation, he pointed the pen directly at a material called 'Tianming Electrolyte', and asked like this.

"What's wrong with this?"

Seeing Song Zhiyi pointing to the electrolyte, Jiang Ming asked in surprise.

"It is like this. According to the design goal of 500Wh/kg, the electrolyte needs to provide enough ions for charge transfer."

"Although the loading capacity of Tianming's electrolyte is sufficient, its stability is much worse. The battery produced in this way is prone to problems."

Song Zhiyi put forward his own point of view.

"Then do you know why Tianming's electrolyte has poor stability?"

Jiang Ming thought for a while, but instead of replying directly, he asked rhetorically.

"It should be that the concentration of lithium hexafluorophosphate inside it is too high, and the corresponding inhibitors are not enough to inhibit the occurrence of side reactions. The serious lithium precipitation is caused, and the external manifestation is poor stability."

Song Zhiyi thought about it for a long time before saying this.

"DO NOT!"

Jiang Ming shook his head at Song Zhiyi.

"What's the reason for that?"

"You know, since this electrolyte has been researched, it means that the ratio of its inhibitor is sufficient. The poor stability is indeed caused by too many side reactions, but not because of the inhibitor."

"It's because there are too few ions in the negative electrode material, which leads to the failure of the lithium ions in the positive electrode to be inlaid in time, and eventually metallization comes out."

Jiang Ming explained.

"Um, is there such a reason?"

Song Zhiyi thought about it for a long time, but he was also dubious.

"When the test product comes out, you will know whether it is like this."

"Since there is no problem with the overall plan, then apply for materials and let the sample room make samples according to this technical route."

Jiang Ming arranged for Song Zhiyi.

"Okay, I'll make arrangements."

It has to be said that Song Zhiyi, who had regained his confidence, was quite positive. He didn't say anything, picked up the information Jiang Ming gave, and began to refine the plan on the computer.

To design a usable lithium battery cell, a lot of materials are needed.Jiang Ming just selected the main material and the main technical route.

Other auxiliary materials and additives are still made by Song Zhiyi.

In addition, when it comes to the compaction density of some battery pole pieces, as well as the time and ratio of vacuum stirring the slurry, Song Zhiyi also needs to determine them one by one.

After all, the parameters are like this, but whether it can be made is also one thing.

After the work of Song Zhiyi and Su Lingjuan was arranged, Jiang Ming suddenly felt a little idle.

Looking at the time, it was eight o'clock in the evening again, and I had already worked overtime for 2 hours.

It looked like it was getting dark outside.Jiang Ming was not ready to stay in the company any longer, so he packed up and went home.

Baineng Company, as one of the largest companies in Jianglin, is located in a good environment.

Backed by mountains and rivers, overlooking the lake in the front and the river on the side.At night, under the background of the lights, it looks beautiful no matter how you look.

The gentle evening wind blows, adding to the comfort.

While walking, he took out his mobile phone and looked at a message.

It was Jiang Ming who sent it to Baby Qinqin, but this message had been sent out for a day, and Baby Qinqin didn't reply.

"Hey, I'm angry again! I don't know how to offend her."

Jiang Ming sighed leisurely.

To say that my girlfriend is good at everything is just a little materialistic.

Of course, Jiang Ming can also understand that a little girl, who is not materialistic, is willing to fall in love with you, that's not bad.How can there be no shortcomings?

It's just that Jiang Ming also knows his own conditions, living alone in a big city, without parents to rely on, and his difficulties, who can understand?

I remember the last time Zhang Qin and Jiang Ming were angry, it was because the gift Jiang Ming bought for Zhang Qin at Christmas was wrong, which caused Zhang Qin to lose face among his colleagues.

Until now, Jiang Ming was a little confused as to what he did wrong.

After all, Jiang Ming is a man of engineering. In Jiang Ming's mind, Christmas is a western holiday, and it is promoted by unscrupulous merchants in China for the purpose of promoting sales and boosting sales.

Essentially, what does this have to do with the young man in Jianglin, China?
Is it because China doesn’t have enough traditional festivals, or is the festival culture not strong enough, so we have to celebrate foreign festivals?
It is better than this to have this leisure time and spend a Qingming.

Besides, Jiang Ming spent more than 1000 yuan to buy a bag for Zhang Qin.According to Jiang Ming, it should be about the same.

After all, Zhang Qin, although he graduated from a serious university, found a job and only paid more than 3000 yuan a month.

Spending one-third or even one-half of your monthly income to buy a bag, it stands to reason that the grade is not low.

Unexpectedly, Zhang Qin looked at the 1000-dollar bag in his hand, and then at the two G bags newly received in the hands of the little girl next door. Own.

God has a lesson, is that an ordinary working class, can it afford it?
The little beauty is also treated like this because she has a godfather.

Sometimes Jiang Ming was very puzzled. He clearly paid more according to the proportion, so how could he be compared by others.

You know, more than 1000 yuan is not a small amount for Jiang Ming. After paying off the mortgage, it takes up nearly half of his income.

As for the two Gs, for the godfather of a beauty, it may be a meal.

It is also a strange thing that I pay more, but get the least.

"Hey, I blame myself for earning too little before."

Many times, facing Zhang Qin's complaints, Jiang Ming could only comfort himself in this way.

(End of this chapter)